PATH
The Port Authority Trans Hudson Tubes, is New York's fourth subway system, operated by the Port Autority of NY and NJ, it runs from Manhattan, to Hoboken, Jersey City, and Newark, service is in the form of four routes.

Metro-North Railroad
The MTA operates the Hudson, Harlem, and New Haven Lines out of Grand Central to points north of New York City. NJ Transit also runs 2 west of Hudson Lines under contract with MNR.

Long Island Railroad
The MTA operates the LIRR, the oldest railroad in the world to be still operated under the same name. The commuter rail system runs 11 brances to the eastern outskirts of Long Island from Penn Station, Jamaica, and Flatbush Avenue, Brooklyn.

New Jersey Transit
NJT operates the state of New Jersey's Transit system. It has 11 Commuter Rail Lines leaving from Hoboken Terminal, and Penn Station. It also operates the state's 3 light rail lines:

The Hudson-Bergen Light Rail
The tri-state area's newest rail line, the first branch opening in 2000. The surface light rail line running almost entirely on it's own Right of Way connects Jersey City Waterfront with Bayonne, Hoboken, Weehawken, Union City, and North Bergen

The Newark City Subway
A remnent of Newark's old extensive streetcar system raimans with the Route 7 line, now converted to LRV operation. The line connects Belleville, and Bloomfield with downtown Newark, running through downtown in a subway with 3 stations.

The RiverLINE
This Diesel Light Rail, the first in the nation, runs along the Deleware River from Trenton to Camden connecting towns inbetween, along a freight ROW, that is still in use by CSX during the overnight hours.